centre of gravity

Thân thiện

A toy pyramid balances perfectly on its centre of gravity.

Definition

Noun: The point within an object or system where its entire weight is considered to be concentrated and through which the force of gravity acts. In a uniform gravitational field, this point is identical to the center of mass.

Usage

The term is used in physics, engineering, and everyday contexts to describe balance, stability, and the effective point of gravitational pull. - It is a singular, countable noun. - Often used with the prepositions of (centre of gravity of an object) or for (centre of gravity for the aircraft).

Examples

• For a uniform rod, the centre of gravity is at its geometric midpoint.
• The pilot adjusted the cargo to shift the aircraft's centre of gravity.
• A low centre of gravity makes a vehicle more stable and less likely to tip over.
• In gymnastics, athletes must be acutely aware of their centre of gravity to maintain balance.

Advanced Usage

• Strategic/Military Centre of Gravity: In military theory, a key concept referring to the source of an opponent's power, strength, or will to fight.
  • The enemy's command and control network was identified as the strategic centre of gravity.
• Figurative Use: Can describe the most important or influential part of an activity, system, or group.
  • The city has become the cultural centre of gravity for the entire region.

Variants and Related Words

• Center of gravity: The American English spelling.
• Center of mass (or Centre of mass): The point where mass is equally distributed. While often coincident with the centre of gravity, they are technically different if the gravitational field is not uniform.
• Centroid: The geometric center of a shape or object.
• Balance point: A more general, non-technical term.

Synonyms

• Balancing point
• Gravitational center
• Fulcrum (in specific mechanical contexts)

Related Phrases and Idioms

• To lower one's centre of gravity: To crouch or adopt a stance to become more stable, both literally and figuratively.
  • The boxer lowered his centre of gravity to brace for the impact.
  • The company lowered its financial centre of gravity by reducing debt.
• A shifting centre of gravity: Describes a change in the main focus or point of power within a system.
  • There is a shifting centre of gravity in global economics from West to East.

Học thuật

Noun

1. the point within something at which gravity can be considered to act; in uniform gravity it is equal to the center of mass

Từ đồng nghĩa

• center of gravity